Microchip Technology MCP39F521 Single-Phase Power-Monitoring Devices
Microchip MCP39F521 Single-Phase Power-Monitoring Devices have a power monitoring accuracy capable of 0.1% error across a 4000:1 dynamic range. The MCP39F521 is designed for real-time measurement of input power for AC/DC power supplies, power distribution units, consumer and industrial applications. The devices include dual-channel delta-sigma ADCs, a 16-bit calculation engine, EEPROM, and a flexible two-wire I2C interface.
Features
- Power Monitoring Accuracy Capable of 0.1% Error Across 4000:1 Dynamic Range
- Built-In Calculations on Fast 16-bit Processing Core Active, Reactive, Apparent Power
- True Root Mean Square (RMS) Current, RMS Voltage Line Frequency, Power Factor
- 64-bit Wide Import and Export Active Energy Accumulation Registers
- 64-bit Four Quadrant Reactive Energy Accumulation Registers
- Signed Active and Reactive Power Outputs
- Dedicated Zero-Crossing Detection (ZCD) Pin
- Output with Less than 100 μs Latency
- Automatic Event Pin Control through Fast Voltage Surge Detection, Less than 5 ms Delay
- I2C Interface, up to 400kHz Clock Rate
- Two Independent Registers for Minimum and Maximum Output Quantity Tracking
- Fast Calibration Routines and Simplified Command Protocol
- 512 Bytes User-Accessible EEPROM through Page Read/Write Commands
- Low-Drift Internal Voltage Reference, 10 ppm/°C Typical
- 28-lead 5x5mm QFN Package
- Extended Temperature Range -40°C to +125°C
Applications
- Power Monitoring for Home Automation
- Industrial Lighting Power Monitoring
- Real-Time Measurement of Input Power for AC/DC Supplies
- Intelligent Power Distribution Units
Block Diagram
Inilathala: 2016-08-17
| Na-update: 2022-03-11